feat: set domain as deleted when tld is deleted

src/Entity/Tld.php

@@ -77,6 +77,9 @@ class Tld
     #[ORM\OneToMany(targetEntity: Entity::class, mappedBy: 'tld')]
     private Collection $entities;
 
+    #[ORM\Column(type: Types::DATE_IMMUTABLE, nullable: true)]
+    private ?\DateTimeImmutable $deletedAt = null;
+
     public function __construct()
     {
         $this->rdapServers = new ArrayCollection();
@@ -241,4 +244,16 @@ class Tld
 
         return $this;
     }
+
+    public function getDeletedAt(): ?\DateTimeImmutable
+    {
+        return $this->deletedAt;
+    }
+
+    public function setDeletedAt(?\DateTimeImmutable $deletedAt): static
+    {
+        $this->deletedAt = $deletedAt;
+
+        return $this;
+    }
 }